Advertisements
Advertisements
Question
Why does a person fall when he jumps out from a moving train ?
Advertisements
Solution
If a person jumps out of a moving train and tries to stop immediately, he falls due to inertia of motion. This is because his body tends to move forward with the velocity of the train while his feet are stationary.
APPEARS IN
RELATED QUESTIONS
In the following example, try to identify the number of times the velocity of the ball changes:
“A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team”.
Also identify the agent supplying the force in each case.
The mass of object A is 6 kg whereas that of another object B is 34 kg. Which of the two objects, A or B, has more inertia ?
Calculate the momentum of the following :
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s

Describe the term ‘inertia’ with respect to motion.
The unit of measuring momentum of a moving body is :
A Honda City car, a Maruti Alto car, A Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50 m/s under identical conditions. If all these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in :
Why does a ball thrown vertically upwards in a moving train , come back to the thrower's hand ?
What do you understand by the term inertia?
Give two examples of inertia kinds.
What are the types of inertia? Give an example for each type.
